Open AccessThermal Models for Evaporative Cooling on Photovoltaic Panel Attached with a Wetted Salo Fabric
Author(s) -
B Gleebpratum,
Saran Salakij
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/566/1/012005
Subject(s) - photovoltaic system , thermal , materials science , evaporative cooler , operating temperature , environmental science , mechanical engineering , engineering , meteorology , electrical engineering , physics
Photovoltaic (PV) panel efficiency is dropped when an operating temperature has increased. An evaporative cooling by attaching a wetted Salo fabric at the back surface of the panel has been used to resolve this problem. This paper presents thermal models, which will be used as a design tool to improve the panel efficiency on the actual photovoltaic panel, to predict the back surface temperature of the photovoltaic panel. Two cases are investigated: (i) plain photovoltaic and (ii) photovoltaic with cooling device. An experiment is setup to validate the thermal models by using photovoltaic model, which made from an aluminium attached with a silicone heater, to represent for an actual photovoltaic panel. The experiment is tested in the controlled condition room. The results from the thermal models are nearly predict the back surface temperature compared with the experimental data. It shows that the temperature difference of back surface temperature between uncooling and cooling cases is 24.5°C.